Teetotal

Those who sign the abstinence pledge are entered with O. P. (old pledge) after their name. Those who pledge themselves to abstain
wholly from alcoholic drinks have a T (total) after their name.
Hence, T = total abstainer.

The tale about Dick Turner, a plasterer or fish-hawker at Preston,
in Lancashire, who stammered forth, “Ill have nowt to do with the
moderation botheration pledge; I'll be reet down t- total, that or
nowt,” is not to be relied on.

It is said that Turner's tombstone contains this inscription:
“Beneath this stone are deposited the remains of Richard Turner, author
of the word Teetotal as applied to abstinence from all
intoxicating liquors, who departed this life on the 27th day of
October, 1846, aged 56 years.”